QQ -- the class of all rational numbers

The ring QQ is a member of the class Ring. Each object of class QQ is called a rational number.

i1 : 1/2 + 3/5



     11

o1 = --

     10



o1 : QQ

Methods for using a rational number :

CC * QQ

CC + QQ

CC - QQ

CC / QQ

CC == QQ

ideal QQ

lift(QQ,QQ)

lift(QQ,Ring)

lift(QQ,ZZ)

lift(RingElement,QQ)

liftable(QQ,Ring)

mathML QQ

Matrix * QQ

Matrix ** QQ

monomialIdeal QQ

net QQ

numerator QQ

promote(Matrix,QQ)

promote(QQ,QQ)

promote(QQ,Ring)

promote(QQ,RingElement)

promote(ZZ,QQ)

QQ % RingElement

QQ * CC

QQ * Matrix

QQ ** Matrix

QQ + CC

QQ - CC

QQ / CC

QQ == CC

QQ == RR

QQ == ZZ

QQ _ Ring

RR == QQ

Thing ^ QQ

toString QQ

ZZ == QQ